*{
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
#root{
  height: 100%;
}

body{
  margin: 0;
  height: 100%;
  font-family: Helvetica Neue,Helvetica,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Arial,sans-serif;
}

